Topic: Enthalpy Question help (Read 589 times)

The following would represent enthalpy (a change in potential energy) a) When the surrounding air gets colder b) When water temperature increases in a calorimeter c) When an ice cube melts d) When a beaker is heated with a Bunsen burner

This question has been very confusing. I believe the answer may be C since an ice cube melting is a spacial change which may be a change in potential energy. And the others represent temperature changes. But an ice cube melting could also represent a temperature change, so im not sure.